The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 11, 2008
Filed:
May. 04, 2006
Michael T. Basham, Maple Grove, MN (US);
Warren L. Larson, Maple Grove, MN (US);
Barbara J. Peterson, Legal Representative, Plymouth, MN (US);
Richard W. Wellens, Plymouth, MN (US);
Mark J. Fleigle, Maple Grove, MN (US);
Don Durenberger, Dayton, MN (US);
Brent Hayden, Brooklyn Park, MN (US);
Ron Lehman, Rogers, MN (US);
Michael T. Basham, Maple Grove, MN (US);
Warren L. Larson, Maple Grove, MN (US);
Barbara J. Peterson, legal representative, Plymouth, MN (US);
Richard W. Wellens, Plymouth, MN (US);
Mark J. Fleigle, Maple Grove, MN (US);
Don Durenberger, Dayton, MN (US);
Brent Hayden, Brooklyn Park, MN (US);
Ron Lehman, Rogers, MN (US);
Tennant Company, Minneapolis, MN (US);
Abstract
A hard floor sweeping and scrubbing machine includes a mobile body comprising a frame supported on wheels for travel over a surface, a motorized cleaning head, a waste hopper, a hopper lift and a vacuum squeegee. The motorized cleaning head is attached to the mobile body and is configured to perform sweeping and scrubbing operations on the surface. The waste hopper is positioned on a rear side of the cleaning head and is configured to receive waste discharged from the cleaning head during the surface sweeping operations. The hopper lift is configured to raise the waste hopper from an operating position, in which the waste hopper is positioned adjacent the cleaning head, to a dumping position, in which the waste hopper is positioned to dump waste collected in the waste hopper. In one embodiment, the vacuum squeegee is attached to the hopper lift. Also disclosed is a method of cleaning a surface using embodiments of the machine.